Skip to main content

M-61’s Vitamin C Serum Review: 1 Serum, 3 Weeks, and Brighter Skin

July 16, 2025Beauty, Face, Pregnancy Safe, Serum6 min read

M-61 is hands down one of my favorite beauty brands. From their eye serum to their masks, this brand consistently delivers results that make me swoon. So naturally, when I heard they had a Vitamin C serum—Vitablast C Serum 2.0—I had to try it. Spoiler alert: she’s that girl.

But first, let’s talk about what brought me here—pregnancy, hyperpigmentation, and a healthy dose of beauty anxiety.

Pregnancy-Safe Skincare and the Fear of the Mask

Ah yes, the pregnancy mask—melasma, if you want to get scientific. As someone with Asian skin (hello, high melanin production!), the fear of dark spots and uneven tone during pregnancy was very real. My mom had it. My aunts had it. So I fully expected to join the family legacy.

But not without a fight.

Enter: M-61’s Vitablast C Serum 2.0. I trusted this serum like a loyal friend, and it showed up for me in the most glowing way possible.

Does M-61 Vitamin C Serum Actually Work?

In short? Yes. After just three weeks, I noticed a visible difference in my skin. Brighter, more even-toned, and the dark spots I feared never quite had the chance to form. Now, if you’re new to vitamin C serums, let me tell you: three weeks is the average time it takes to see results. So don’t give up after five days—glow takes patience, darling.

I’ve tried the cult favorites—Clinique’s Even Better Clinical Dark Spot Remover, I’m looking at you—but this was the first vitamin C serum where I could actually see results. No spotted egg commercials necessary.

M-61 Vitamin C Before & After Photos

M-61 Vitamin C Serum before photo.
Before: I had a lot of dark spots on my cheek.

Before

M-61 Vitamin C after image.
After: Those dark spots have significantly faded, and the size of the spots has shrunk.

After

Is M-61 Vitablast C Serum Safe During Pregnancy?

Yes, and cue the sigh of relief! According to trusted online sources like 15 Minute Beauty and SkinSAFE, M-61’s Vitablast C Serum 2.0 is considered safe to use during pregnancy. It’s formulated without the usual red-flag ingredients—no parabens, phthalates, sulfates, or synthetic fragrance in sight.

When you’re growing a tiny human, every product in your skincare routine suddenly comes under a microscope. But this serum? It passed the test—and with flying colors. A little glow boost you can actually feel good about.

Redness Without Irritation? It’s Possible.

Now for some real talk: when I first applied this serum, my skin turned a little red. But weirdly, it didn’t feel irritated. There was no burning, no itching. Just a flush, like my skin knew something good was happening.

Sensitive skin girlies, you may want to patch test, but I personally had zero complaints.

Did M-61 Vitablast C Serum 2.0 Cause Any Breakouts?

Here’s the best part: not a single breakout.
As someone with oily, acne-prone skin, I am always holding my breath when introducing anything new to my routine. But M-61 passed the ultimate stress test—no clogged pores, no angry pimples, no “what did I just do to my skin?” regrets. It’s like the serum knew exactly how to love my skin without smothering it.

Is M-61 Vitamin C Serum Hydrating?

Here’s where honesty meets expectations: it’s not the most hydrating serum. It’s not pretending to be either. So, pair it with your favorite moisturizer—because your skin will thank you.

Pro tip: Some people experience slight darkening or “staining” of the skin when using vitamin C serums (and yes, I panicked the first time too). It’s actually totally normal and usually temporary. Vitamin C can oxidize slightly on the skin if it’s not sealed in properly. The easiest fix? Slather on a good moisturizer right after applying the serum. Hydrated skin helps prevent that pesky temporary staining, leaving you with nothing but the glow you were promised.

And of course, please, for the love of your future self—don’t skip your SPF.

What I love about this serum is that you can even use it at night before bed. It’s like hitting the undo button on all the day’s little sins while you sleep.

💡 Skincare Tip: Glow Emergency 101
Sometimes, even our best beauty intentions backfire—hello, mysterious dark patches after using vitamin C. Don’t freak out. It’s just oxidation throwing a tantrum on your skin. Slather on a rich moisturizer (your serum’s trusty sidekick), and if you want to speed up the “return to radiance,” treat yourself to some gentle exfoliation. Think of it as a breakup text to those unwanted spots: “It’s not me, it’s you.”

Why I Keep Reaching for M-61’s Vitamin C Serum

Because it works. Plain and simple.

When you find a product that doesn’t overpromise, doesn’t break you out, and quietly erases years of sun sins and hormonal drama, you hold onto it like your favorite pair of heels that somehow never hurt your feet.

Final Thoughts: Is This Serum Worth It?

Absolutely. M-61 Vitablast C Serum 2.0 is the real deal. If you’re struggling with dark spots, dullness, or just want to even out your skin tone during pregnancy or not—this serum delivers.

It’s earned a permanent spot in my skincare rotation, and maybe even in my heart.

Sources

Purplle. 5 Mistakes You Might Be Making with Your Vitamin C Serum (https://www.purplle.com/magazine/article/5-mistakes-you-might-be-making-with-your-vitamin-c-serum) Accessed 4/26/25.